Attorney General Chris Koster is in the process of interviewing customers and reaching out to the spa's owner.

"I was surprised and I was mad," said customer Joanna Pergande.

She said she signed up for laser hair removal at the Hudson Med Spa to get ready for bikini season. She said she had no idea what would happen when she went to her next appointment.

"I didn't think anything was wrong," she said. "I looked in the window and there was nothing in the space that it was in."

All she found was a note that said the Hudson Med Spa was gone and a schedule of appointments the business wouldn't keep.

"I was like, 'I think they skipped town. I think they moved or shut down,'" Pergande said.

She said she lost $300 that she had paid the company.

"I was mad because I feel like they stole the money," she said.

During the November investigation, KMBC 9 News spoke with other customers, including Rachel Richter, who lost more than $1,000.

The spa's website is down, the phone is disconnected and the company won't respond to emails. In addition to the state investigation, the Better Business Bureau of Kansas City is also fielding calls from frustrated customers.

"(They're) infuriated, mostly. They tend to lash out a lot," said Aaron Reese of the Better Business Bureau of Kansas City.

He said Hudson Med Spa's vanishing act isn't surprising.

"They were just a normal business beforehand and then turned off," he said.Reese said loosely regulated businesses such as spas and tanning salons that know they're in danger of going under will often offer deep discounts to make quick cash, and then they close down without warning.

"They're going to try to get away with as much as they can," he said.

Reese recommends that jilted customers file formal complaints with the Better Business Bureau and Attorney General's Office and also pay with a credit card so they can later dispute charges, if necessary. If a jilted customer loses a large amount of money, it may be worth hiring an attorney.

The Better Business Bureau gives Hudson Med Spa at D+ rating and recommends that customers check the ratings before getting sucked in by a deal that just too good to be true.

"I'd like to get my money back," said Pergande.

The Missouri Attorney General's Office said it has received 22 complaints about the business since the initial 9 Can Help investigation first aired in November.

The owner has not responded to multiple requests for comment.

Two months before the Hudson Med Spa abruptly closed, owners settled out of court in a medical malpractice suit after a former client claimed she'd been burned while receiving laser hair removal. Attorneys wouldn't comment on how much the spa wound up paying in the settlement, but they said it wasn't nearly enough to put them out of business.